<?php

namespace InnStudio\Prober\Components\Restful;

class RestfulResponse
{
    protected $data;

    protected $headers = array();

    protected $status = 200;

    public function __construct(array $data = null, $status = 200, array $headers = array())
    {
        $this->setData($data);
        $this->setStatus($status);
        $this->setHeaders($headers);
    }

    public function setHeader($key, $value, $replace = true)
    {
        if ($replace || ! isset($this->headers[$key])) {
            $this->headers[$key] = $value;
        } else {
            $this->headers[$key] .= ", {$value}";
        }
    }

    public function setHeaders(array $headers)
    {
        $this->headers = $headers;
    }

    public function getHeaders()
    {
        return $this->headers;
    }

    public function setStatus($status)
    {
        $this->status = $status;

        return $this;
    }

    public function getStatus()
    {
        return $this->status;
    }

    public function setData($data)
    {
        $this->data = $data;

        return $this;
    }

    public function getData()
    {
        return $this->data;
    }

    public function toJson()
    {
        $data = $this->getData();

        if (null === $data) {
            return '';
        }

        return json_encode($data);
    }

    public function dieJson()
    {
        $this->httpResponseCode($this->status);
        header('Content-Type: application/json');
        header('Expires: 0');
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
        header('Cache-Control: no-store, no-cache, must-revalidate');
        header('Pragma: no-cache');

        $json = $this->toJson();

        if ('' === $json) {
            exit;
        }

        exit($json);
    }

    private function httpResponseCode($code)
    {
        if (\function_exists('http_response_code')) {
            return http_response_code($code);
        }

        $statusCode = array(
            100 => 'Continue',
            101 => 'Switching Protocols',
            102 => 'Processing',
            200 => 'OK',
            201 => 'Created',
            202 => 'Accepted',
            203 => 'Non-Authoritative Information',
            204 => 'No Content',
            205 => 'Reset Content',
            206 => 'Partial Content',
            207 => 'Multi-Status',
            300 => 'Multiple Choices',
            301 => 'Moved Permanently',
            302 => 'Found',
            303 => 'See Other',
            304 => 'Not Modified',
            305 => 'Use Proxy',
            306 => '(Unused)',
            307 => 'Temporary Redirect',
            308 => 'Permanent Redirect',
            400 => 'Bad Request',
            401 => 'Unauthorized',
            402 => 'Payment Required',
            403 => 'Forbidden',
            404 => 'Not Found',
            405 => 'Method Not Allowed',
            406 => 'Not Acceptable',
            407 => 'Proxy Authentication Required',
            408 => 'Request Timeout',
            409 => 'Conflict',
            410 => 'Gone',
            411 => 'Length Required',
            412 => 'Precondition Failed',
            413 => 'Request Entity Too Large',
            414 => 'Request-URI Too Long',
            415 => 'Unsupported Media Type',
            416 => 'Requested Range Not Satisfiable',
            417 => 'Expectation Failed',
            418 => "I'm a teapot",
            419 => 'Authentication Timeout',
            420 => 'Enhance Your Calm',
            422 => 'Unprocessable Entity',
            423 => 'Locked',
            424 => 'Failed Dependency',
            424 => 'Method Failure',
            425 => 'Unordered Collection',
            426 => 'Upgrade Required',
            428 => 'Precondition Required',
            429 => 'Too Many Requests',
            431 => 'Request Header Fields Too Large',
            444 => 'No Response',
            449 => 'Retry With',
            450 => 'Blocked by Windows Parental Controls',
            451 => 'Unavailable For Legal Reasons',
            494 => 'Request Header Too Large',
            495 => 'Cert Error',
            496 => 'No Cert',
            497 => 'HTTP to HTTPS',
            499 => 'Client Closed Request',
            500 => 'Internal Server Error',
            501 => 'Not Implemented',
            502 => 'Bad Gateway',
            503 => 'Service Unavailable',
            504 => 'Gateway Timeout',
            505 => 'HTTP Version Not Supported',
            506 => 'Variant Also Negotiates',
            507 => 'Insufficient Storage',
            508 => 'Loop Detected',
            509 => 'Bandwidth Limit Exceeded',
            510 => 'Not Extended',
            511 => 'Network Authentication Required',
            598 => 'Network read timeout error',
            599 => 'Network connect timeout error',
        );

        $msg      = isset($statusCode[$code]) ? $statusCode[$code] : 'Unknow error';
        $protocol = (isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0');

        header("{$protocol} {$code} {$msg}");
    }
}
